US20250140887A1 - Electrode-stacking wheel having an electrode-clamping element, corresponding electrode-stacking device, and method for producing an electrode stack - Google Patents

Electrode-stacking wheel having an electrode-clamping element, corresponding electrode-stacking device, and method for producing an electrode stack Download PDF

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Publication number
US20250140887A1
US20250140887A1 US18/554,055 US202218554055A US2025140887A1 US 20250140887 A1 US20250140887 A1 US 20250140887A1 US 202218554055 A US202218554055 A US 202218554055A US 2025140887 A1 US2025140887 A1 US 2025140887A1
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United States
Prior art keywords
electrode
stacking
clamping
wheel
stacking wheel
Prior art date
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Pending
Application number
US18/554,055
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English (en)
Inventor
Xaver Thum
Frank Neudel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient Currency Technology GmbH
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Giesecke and Devrient Currency Technology GmbH
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Assigned to GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH reassignment GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NEUDEL, FRANK, THUM, XAVER
Publication of US20250140887A1 publication Critical patent/US20250140887A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4474—Pair of cooperating moving elements as rollers, belts forming nip into which material is transported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/111—Details of cross-section or profile shape
    • B65H2404/1113—C-shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/65—Other elements in face contact with handled material rotating around an axis parallel to face of material and perpendicular to transport direction, e.g. star wheel
    • B65H2404/655—Means for holding material on element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/65—Other elements in face contact with handled material rotating around an axis parallel to face of material and perpendicular to transport direction, e.g. star wheel
    • B65H2404/656—Means for disengaging material from element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/72—Fuel cell manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the invention relates to an electrode-stacking wheel designed to receive and convey planar electrode elements.
  • the electrode stacking wheel has a spindle which is designed to rotate the electrode stacking wheel.
  • the electrode stacking wheel has a plurality of stacking fingers, which are radial to the spindle and which are arranged circumferentially around the spindle.
  • the electrode stacking wheel has a plurality of intermediate spaces, each of which is formed between the respective stacking fingers, wherein a respective intermediate space is designed to receive at least one of the electrode elements.
  • the invention also relates to a corresponding electrode stacking device and method for producing an electrode stack.
  • Electrode elements for producing electrochemical energy stores such as lithium-ion batteries or energy converters, such as fuel cells, are therefore usually stacked. Electrode elements are stacked to produce pouch cells in particular, a widely used design of a lithium-ion rechargeable battery.
  • the electrode elements are usually designed as a cathode, based, for example, on aluminum foil, and/or as an anode, based, for example, on copper foil.
  • the smallest unit of each lithium-ion cell consists of two electrodes and at least one separator that separates the electrodes from one another.
  • the ion-conductive electrolyte is subsequently placed between the two electrodes after filling.
  • the electrode elements are stacked in a repeating cycle of anode, separator, cathode, separator, and so on and so forth.
  • the step of stacking is often the bottleneck in the manufacturing throughput during production. There is therefore great interest in speeding up the stacking process.
  • WO 2020/212316 A1 describes a method for producing an electrode stack of anodes and cathodes for a lithium-ion battery of an electrically driven motor vehicle, in which the anodes and the cathodes are conveyed into receptacles of a rotationally driven or rotationally drivable stacking wheel, and the anodes and cathodes received in the receptacles are conveyed to a stacking compartment by means of a rotation of the stacking wheel.
  • An important step when stacking the electrode elements with the aid of a stacking wheel is the accuracy with which the electrode elements are transported by the stacking wheel.
  • the transporting accuracy has a direct effect on the stacking accuracy.
  • the more accurately the stacking wheel transports the electrode elements the more accurately the electrode stack can be produced.
  • the object of the invention is to provide an electrode stacking wheel, an electrode stacking device, and a method for producing an electrode stack, with which or in which an electrode element can be stacked more accurately.
  • An electrode stacking wheel according to the invention is designed to receive and convey planar electrode elements.
  • the electrode stacking wheel comprises the following:
  • the electrode stacking wheel comprises an electrode clamping element which is formed in the intermediate spaces in each case.
  • the electrode clamping element is designed, in the clamping state, to apply clamping force to a main surface of one of the electrode elements and to press the respective electrode element against the respective stacking finger by means of the application of force.
  • the invention is based on the knowledge that the accuracy of transporting can be increased by transporting the electrode elements from the electrode stacking wheel in the clamped state. As a result, it is possible to prevent the electrode elements from moving within the electrode stacking wheel and consequently being deposited inaccurately on the electrode stack.
  • the respective electrode clamping element can have two different states: A clamping state which is present when an electrode element is arranged in the intermediate space and the electrode clamping element exerts the clamping force on the electrode element. And a non-clamped state which is present when the intermediate space is vacant, in other words no electrode element is arranged in this space. In the non-clamped state, the electrode clamping element can be tension-free or relaxed.
  • the electrode stacking wheel has a plurality of stacking fingers.
  • An intermediate space is preferably formed between each of the stacking fingers.
  • At least one of the electrode clamping elements is preferably formed in the respective intermediate space.
  • each stacking finger is preferably elongate in each case. Furthermore, each stacking finger preferably tapers as the distance from the spindle increases.
  • the electrode clamping element is preferably elongate and/or finger-shaped.
  • the electrode clamping element is tapered flat at the free end, in other words the end facing away from a contact point with the stacking finger.
  • the electrode clamping element is preferably designed to be bendable at least in the region of the contact point when force is applied, in particular the electrode clamping element moves back into the starting position when the application of force ceases. As a result, the electrode clamping element can be displaced by the electrode element, but then exerts the clamping force on the electrode element, since it wants to return to its original position again.
  • the electrode stacking wheel, the stacking fingers, and in particular the electrode clamping elements are preferably also formed from one piece.
  • the main surface of the electrode element is in particular designed as a surface with a larger surface area than the side surfaces.
  • the main surface is the surface which, in the clamping state, is formed in the direction of the stacking fingers, in other words in particular not an end face or side surface, which is narrower by a multiple than the main surface.
  • Each of the intermediate spaces is preferably open in the axial direction.
  • the stacking fingers have a curvature.
  • the curvature in particular runs counter to the running direction of the electrode stacking wheel.
  • the stacking fingers and/or the intermediate spaces can also be designed without a curvature, in particular for receiving electrode elements with limited flexibility or rigid electrode elements.
  • the position in the electrode stacking wheel can then be radial or secant.
  • a plurality of electrode elements are conveyed to the electrode stacking wheel in order to produce the electrode stack.
  • the electrode elements can be designed as a cathode and/or anode.
  • cathodes and anodes are conveyed alternately.
  • a separator or a separating layer is in particular arranged between the electrode elements, in particular between the cathode and the anode.
  • the electrode elements can also be formed as a prefabricated cell comprising a cathode, an anode, and preferably also at least one separating layer.
  • the electrode element can already be formed as a cell and finished cells can be stacked on top of one another by the electrode stacking wheel.
  • the electrode clamping element is, in particular, elastic and spring-loaded, and a spring force can be applied to the electrode element by the electrode clamping element.
  • the spring-loaded property is made possible by the material and the material thickness of the electrode clamping element. Due to the spring-loaded design, the clamping force can be provided passively, in other words without external energy. An electric actuator can be dispensed with in this case. The electrode clamping element can rest against the adjacent stacking finger in the non-clamped state and is only moved or pushed away from it by the electrode element inserted into the intermediate space.
  • the electrode clamping element can provide the clamping force actively, in particular by means of an actuator which is preferably electric.
  • the electrode clamping element is designed as part of the respective stacking finger.
  • the electrode clamping element can therefore be designed, for example, as a branch or branching of the stacking finger.
  • the electrode clamping element is preferably narrower or thinner than the respective stacking finger.
  • the electrode clamping element can therefore be produced such that, for example, a half-slot is introduced into the stacking finger.
  • the electrode clamping element is partially separated from the stacking finger by the half-slot.
  • the electrode clamping element is preferably still connected to the stacking finger at a contact point and can be formed thereon in a spring-loaded manner.
  • the electrode clamping element is connected to the respective stacking finger by means of a contact point.
  • the surface area of the contact point is preferably only so large that the electrode clamping element can be formed flexibly on the stacking finger.
  • the contact point provides a means for the electrode clamping element to reliably provide the clamping force.
  • the electrode clamping element is made from the same material as the stacking finger.
  • the material is designed as a plastic, for example.
  • the electrode clamping element can be designed to be cost-effective and reliable.
  • the invention also relates to an electrode stacking device, in particular for producing an electrode stack for a rechargeable battery or a fuel cell.
  • the electrode stacking device has at least one electrode stacking wheel according to the invention.
  • the electrode stacking device has a plurality of electrode stacking wheels according to the invention.
  • the electrode stacking device has, axially offset from the electrode stacking wheel, at least one clamping element-free stacking wheel having the same spindle.
  • the invention relates to a further aspect of an electrode stacking device with a plurality of stacking wheels or electrode stacking wheels arranged on a common spindle.
  • the stacking wheels or electrode stacking wheels can, additionally or alternatively to being fitted with the electrode clamping element, be arranged such that they are rotated with respect to the spindle, in other words they can be rotated by the rotation in the direction of rotation such that the intermediate spaces no longer align exactly in the axial direction, but are only aligned obliquely to the axial direction.
  • This is advantageous, as the electrode elements are clamped by the stacking wheels rotated relative to one another.
  • the rotated stacking wheels can be formed in addition to the electrode clamping elements, or alternatively without the electrode clamping elements.
  • the invention also relates to a method.
  • an electrode stack in particular for a rechargeable battery or a fuel cell, is produced with planar electrode elements. The following steps are performed:
  • a clamping force is applied to the electrode element, during its movement through the electrode stacking wheel, in a clamping position by means of an electrode clamping element.
  • the electrode element is in the clamping position when it is fixed by the electrode clamping element.
  • a passive stripping element which overcomes the clamping force is used to remove the electrode element from the intermediate space in step e).
  • the passive stripping element can be formed, for example, from a stripping arm, against which the electrode elements are enmeshed by the electrode stacking wheel once the transport path has been completed and automatically stripped by the ongoing rotation of the electrode stacking wheel.
  • an active stripping element which overcomes the clamping force is used to remove the electrode element from the intermediate space in step e).
  • the active stripping element can be designed, for example, as a cam wheel.
  • the cam wheel can, for example, run along the electrode elements and actively strip them once the transport path has been completed.
  • the active stripping element can be driven by the drive of the electrode stacking wheel or a separate drive, in particular a dedicated drive.
  • the electrode element is braked by the electrode clamping element in step c). Due to the braking effect of the electrode clamping element, the electrode element can be arranged and transported more accurately in the intermediate space. As a result of the more accurate arrangement in the electrode stacking wheel, the electrode element can also be deposited more accurately on the electrode stack.
  • the electrode element is conveyed into the clamping position in a controlled manner by a feeding device in step a).
  • a controlled manner means that the movement of the electrode element is not left to chance, as is the case, for example, with unguided or free flight through the air.
  • the position of the electrode element can substantially be influenced at any time. Controlled conveying exists, for example, when the electrode element is clamped by means of a belt.
  • the electrode element is preferably transported by a belt, in a controlled manner, directly into the electrode stacking wheel or the respective intermediate space, and clamped there by the electrode clamping elements.
  • the belt guiding is preferably terminated by the feeding device at the earliest following the clamping by the electrode clamping elements.
  • the control over the electrode element passes from the feeding device to the electrode stacking wheel.
  • the electrode element is therefore preferably pushed from the feeding device into the intermediate space until the electrode element is in the clamped state, then the feeding device ends the movement and the control of the electrode element.
  • the movement and the control of the electrode element are subsequently assumed or continued in a substantially seamless manner by the electrode stacking wheel. The electrode stack can thus be produced more accurately.
  • the electrode element is introduced into the intermediate space by a feed wheel, in particular the feeding device, with a raised contact attachment that extends circumferentially around only part of the feed wheel.
  • the contact attachment is designed in particular as a raised segment that is only partially circumferential. The contact attachment can be used to bring the respective electrode element more accurately into the clamping position, as the start and end of the control by the feed wheel or the feeding device can be determined more accurately.
  • the electrode element can have a cell arrester.
  • the cell arrester is used for electrically conductive contacting of the respective electrode element.
  • FIG. 1 shows a side view of a schematic representation of an exemplary embodiment of an electrode stacking wheel according to the invention with electrode clamping elements;
  • FIG. 2 shows a schematic detailed view of the electrode clamping elements
  • FIG. 3 is a schematic representation of an exemplary embodiment of an electrode stacking device according to the invention with the electrode stacking wheel and a feeding device;
  • FIG. 4 shows a schematic detailed view of the feeding device
  • FIG. 5 is a schematic representation of a further exemplary embodiment of the electrode stacking device with a plurality of electrode stacking wheels and clamping element-free stacking wheels.
  • FIG. 1 schematically shows an exemplary embodiment of an electrode stacking wheel 1 with a spindle 2 .
  • Stacking fingers 3 are arranged circumferentially around the spindle 2 .
  • the stacking fingers 3 are in particular arranged radially to the spindle 2 , in other words the stacking fingers 3 are arranged such that they protrude from the spindle 2 .
  • the stacking fingers 3 have a curvature 4 according to the exemplary embodiment.
  • the curvature 4 runs counter to a running direction or direction of rotation 5 of the electrode stacking wheel 1 .
  • the stacking fingers 3 are thus formed so as to be curved, in particular in a counterclockwise direction.
  • the thickness of the respective stacking finger 3 substantially tapers as the distance from the spindle 2 increases.
  • the electrode stacking wheel 1 rotates about the spindle 2 .
  • the electrode stacking wheel 1 rotates clockwise when viewed in the image plane shown in FIG. 1 .
  • the rotational speed is preferably at least 20 revolutions per minute.
  • the rotational speed can be, for example, up to a maximum of 60 revolutions per minute.
  • the rotational speed is dependent on the number of intermediate spaces in relation to the transport speed of the electrode elements.
  • An electrode clamping element 8 is formed in each of the intermediate spaces 6 .
  • a clamping force is applied to a main surface 9 (shown in FIG. 5 ) of the electrode element 7 by the electrode clamping element 8 .
  • the clamping force has a direction of action 10 which acts in the clamping state in the direction of an adjacent stacking finger or an inserted electrode element 7 .
  • the electrode clamping element 8 is preferably made from the same material as the stacking finger 3 , in particular from plastic.
  • FIG. 1 shows a detail 11 of the electrode stacking wheel 1 , which is described in more detail in FIG. 2 .
  • FIG. 2 shows the detail 11 of the electrode stacking wheel 1 .
  • the electrode clamping element 8 is designed as part of the stacking finger 3 .
  • the electrode clamping element 8 is only partially separated from the stacking finger 3 by a half-slot 12 .
  • the electrode clamping element 8 is designed to be flexible to such an extent that it can have a spring effect or provide a spring force. In the clamping state, the spring force is exerted on the electrode element 7 .
  • FIG. 3 schematically shows an electrode stacking device 13 with the electrode stacking wheel 1 and a feeding device 14 .
  • the electrode stacking device 13 is designed with a plurality of electrode stacking wheels 1 .
  • the electrode stacking wheels 1 are arranged on the common spindle 2 .
  • the electrode stacking device 13 has a stripping element 15 and a stacking base 16 .
  • An electrode stack 17 is formed on the stacking base 16 .
  • Electrode elements 7 are fed to the electrode stacking wheel 1 or the electrode stacking wheels 1 by means of the feeding device 14 . Received in the respective intermediate space 6 and clamped by the associated electrode clamping element 8 . The electrode element 7 is then transported by means of the electrode stacking wheels 1 as a result of the active electrode stacking wheels 1 rotating. The stripping element 15 then removes the electrode element 7 from the intermediate space 6 , wherein it is deposited on the stacking base 16 or on top of electrode elements 8 already sitting on the stacking base 16 .
  • the stripping element 15 is designed to be passive. However, it can also be designed as an active stripping element, for example as a cam wheel that is driven by an electric drive unit.
  • the respective electrode element 7 is controlled without interruption by either the feeding device 14 or the electrode stacking wheels 1 .
  • the feeding device 14 has an upper belt 18 and a lower belt 19 .
  • the belts 18 , 19 are moved in such a way that the respective electrode elements 7 are transported to the electrode stacking wheel 1 .
  • the lower belt is preferably shorter than the upper belt.
  • the respective electrode element 7 can be introduced or inserted into the electrode stacking wheel 1 in a controlled manner.
  • FIG. 4 shows a schematic detailed view of the feeding device 14 .
  • the feeding device 14 has a feed wheel 20 .
  • the feed wheel 20 pushes the respective electrode element 7 into the intermediate space 6 until a clamping force is applied by the electrode clamping element 8 , thus fixing the electrode element in place.
  • the feed wheel 20 has a contact attachment 21 .
  • the contact attachment 21 is raised and extends circumferentially around only part, in particular less than 180°, of the feed wheel 20 .
  • only the contact attachment 21 makes contact with the respective electrode element 7 , in particular the main surface 9 . If the feed wheel 20 is oriented such that the contact attachment 21 is not pointing in the direction of the upper belt 18 , the electrode element 7 is no longer pushed by the feed wheel 20 .
  • the contact attachment 21 is therefore advantageous for interrupting the action of the feed force from the feed wheel 20 on the respective electrode element 7 .
  • the clamping of the electrode element 7 between the contact attachment 21 and the upper belt 18 or a counter wheel of the upper belt 18 is only able to begin once the electrode element 7 is already partially inside the intermediate space 6 .
  • the clamping between the contact attachment 21 and the upper belt 18 is preferably ended before the electrode element 7 is fully inside the intermediate space 6 .
  • the feed wheel 20 can be coupled to the drive of the lower belt 19 , or alternatively it can be driven with a separate drive.
  • FIG. 5 schematically shows an exemplary embodiment of the electrode stacking device 13 .
  • Two electrode stacking wheels 1 are each arranged with electrode clamping elements 8 on the spindle 2 .
  • a clamping element-free stacking wheel 22 is arranged on the spindle 2 between the two electrode stacking wheels 1 .
  • the clamping element-free stacking wheel 22 has no electrode clamping elements 8 but otherwise is designed in particular analogously to the electrode stacking wheel 1 . Combining the electrode stacking wheels 1 with the clamping element-free stacking wheel 22 allows the electrode elements 7 to be clamped in place, but still easily inserted into the intermediate spaces 6 .
  • the electrode stacking wheels 1 and/or the stacking wheel 22 can be arranged on the spindle 2 such that they are slightly rotated, with the result that the intermediate spaces 6 of the respective wheels 1 , 22 are not exactly aligned in the axial direction.
  • the electrode elements 7 can also be fixed in position.
  • the rotated stacking wheels can be an alternative or addition to the electrode clamping elements 8 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
US18/554,055 2021-04-08 2022-04-01 Electrode-stacking wheel having an electrode-clamping element, corresponding electrode-stacking device, and method for producing an electrode stack Pending US20250140887A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102021001819.2A DE102021001819A1 (de) 2021-04-08 2021-04-08 Elektrodenstapelrad mit Elektrodenklemmelement, Elektrodenstapelvorrichtung und Verfahren zum Erzeugen eines Elektrodenstapels
DE102021001819.2 2021-04-08
PCT/EP2022/025128 WO2022214217A1 (de) 2021-04-08 2022-04-01 Elektrodenstapelrad mit elektrodenklemmelement, entsprechende elektrodenstapelvorrichtung, und verfahren zum erzeugen eines elektrodenstapels

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US (1) US20250140887A1 (de)
EP (1) EP4320061A1 (de)
KR (1) KR20230167069A (de)
CN (1) CN117120355A (de)
DE (1) DE102021001819A1 (de)
WO (1) WO2022214217A1 (de)

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DE102022211988A1 (de) * 2022-10-25 2024-04-25 Giesecke+Devrient Currency Technology Gmbh Vorrichtung und Verfahren zur Herstellung eines Elektrodenstapels

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DE102021001819A1 (de) 2022-10-13

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